Finding the Fourth Proportional to 99,547,925.93, 137,384,314.41 and 54,902,631.05

Step by Step Solution

1. Step 1: Write the proportion equation
   99,547,925.93 : 137,384,314.41 = 54,902,631.05 : x
2. Step 2: Convert to fraction form
   99,547,925.93/137,384,314.41 = 54,902,631.05/x
3. Step 3: Cross multiply
   99,547,925.93x = 137,384,314.41 × 54,902,631.05
4. Step 4: Simplify right side
   99,547,925.93x = 7,542,760,326,109,428
5. Step 5: Solve for x
   x = 7,542,760,326,109,428/99,547,925.93
6. Step 6: Final answer
   x = 75,770,140.42