Finding the Fourth Proportional to 22,499,368.85, 31,048,984.37 and 12,712,981.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,499,368.85 : 31,048,984.37 = 12,712,981.25 : x
2. Step 2: Convert to fraction form
   22,499,368.85/31,048,984.37 = 12,712,981.25/x
3. Step 3: Cross multiply
   22,499,368.85x = 31,048,984.37 × 12,712,981.25
4. Step 4: Simplify right side
   22,499,368.85x = 394,725,156,003,890.56
5. Step 5: Solve for x
   x = 394,725,156,003,890.56/22,499,368.85
6. Step 6: Final answer
   x = 17,543,832.39