Finding the Fourth Proportional to 9,709,753,415.84, 13,399,459,728.72 and 5,254,417,790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,709,753,415.84 : 13,399,459,728.72 = 5,254,417,790.72 : x
2. Step 2: Convert to fraction form
   9,709,753,415.84/13,399,459,728.72 = 5,254,417,790.72/x
3. Step 3: Cross multiply
   9,709,753,415.84x = 13,399,459,728.72 × 5,254,417,790.72
4. Step 4: Simplify right side
   9,709,753,415.84x = 70,406,359,584,622,551,040
5. Step 5: Solve for x
   x = 70,406,359,584,622,551,040/9,709,753,415.84
6. Step 6: Final answer
   x = 7,251,096,559.24