Finding the Fourth Proportional to 9,709,980.71, 13,399,707.42 and 5,359,066.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,709,980.71 : 13,399,707.42 = 5,359,066.92 : x
2. Step 2: Convert to fraction form
   9,709,980.71/13,399,707.42 = 5,359,066.92/x
3. Step 3: Cross multiply
   9,709,980.71x = 13,399,707.42 × 5,359,066.92
4. Step 4: Simplify right side
   9,709,980.71x = 71,809,928,772,200.55
5. Step 5: Solve for x
   x = 71,809,928,772,200.55/9,709,980.71
6. Step 6: Final answer
   x = 7,395,475.95