Finding the Fourth Proportional to 99,403,111.68, 137,174,986.13 and 54,748,226.27

Step by Step Solution

1. Step 1: Write the proportion equation
   99,403,111.68 : 137,174,986.13 = 54,748,226.27 : x
2. Step 2: Convert to fraction form
   99,403,111.68/137,174,986.13 = 54,748,226.27/x
3. Step 3: Cross multiply
   99,403,111.68x = 137,174,986.13 × 54,748,226.27
4. Step 4: Simplify right side
   99,403,111.68x = 7,510,087,178,269,736
5. Step 5: Solve for x
   x = 7,510,087,178,269,736/99,403,111.68
6. Step 6: Final answer
   x = 75,551,831.84