Finding the Fourth Proportional to 99,403,080.83, 137,174,943.71 and 54,748,195.49

Step by Step Solution

1. Step 1: Write the proportion equation
   99,403,080.83 : 137,174,943.71 = 54,748,195.49 : x
2. Step 2: Convert to fraction form
   99,403,080.83/137,174,943.71 = 54,748,195.49/x
3. Step 3: Cross multiply
   99,403,080.83x = 137,174,943.71 × 54,748,195.49
4. Step 4: Simplify right side
   99,403,080.83x = 7,510,080,634,980,403
5. Step 5: Solve for x
   x = 7,510,080,634,980,403/99,403,080.83
6. Step 6: Final answer
   x = 75,551,789.46