Finding the Fourth Proportional to 31,307,931.96, 43,186,642.86 and 19,687,097.40

Step by Step Solution

1. Step 1: Write the proportion equation
   31,307,931.96 : 43,186,642.86 = 19,687,097.40 : x
2. Step 2: Convert to fraction form
   31,307,931.96/43,186,642.86 = 19,687,097.40/x
3. Step 3: Cross multiply
   31,307,931.96x = 43,186,642.86 × 19,687,097.40
4. Step 4: Simplify right side
   31,307,931.96x = 850,219,644,363,834.50
5. Step 5: Solve for x
   x = 850,219,644,363,834.50/31,307,931.96
6. Step 6: Final answer
   x = 27,156,684.94