Finding the Fourth Proportional to 103,061,036.48, 154,591,554.71 and 86,918,516.10

Step by Step Solution

1. Step 1: Write the proportion equation
   103,061,036.48 : 154,591,554.71 = 86,918,516.10 : x
2. Step 2: Convert to fraction form
   103,061,036.48/154,591,554.71 = 86,918,516.10/x
3. Step 3: Cross multiply
   103,061,036.48x = 154,591,554.71 × 86,918,516.10
4. Step 4: Simplify right side
   103,061,036.48x = 13,436,868,537,202,462
5. Step 5: Solve for x
   x = 13,436,868,537,202,462/103,061,036.48
6. Step 6: Final answer
   x = 130,377,774.15