Finding the Fourth Proportional to 154,062,916.96, 212,609,394.12 and 83,500,780.72

Step by Step Solution

1. Step 1: Write the proportion equation
   154,062,916.96 : 212,609,394.12 = 83,500,780.72 : x
2. Step 2: Convert to fraction form
   154,062,916.96/212,609,394.12 = 83,500,780.72/x
3. Step 3: Cross multiply
   154,062,916.96x = 212,609,394.12 × 83,500,780.72
4. Step 4: Simplify right side
   154,062,916.96x = 17,753,050,397,426,178
5. Step 5: Solve for x
   x = 17,753,050,397,426,178/154,062,916.96
6. Step 6: Final answer
   x = 115,232,469.62