Finding the Fourth Proportional to 22,572,146.63, 31,151,483.42 and 12,784,331.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,572,146.63 : 31,151,483.42 = 12,784,331.99 : x
2. Step 2: Convert to fraction form
   22,572,146.63/31,151,483.42 = 12,784,331.99/x
3. Step 3: Cross multiply
   22,572,146.63x = 31,151,483.42 × 12,784,331.99
4. Step 4: Simplify right side
   22,572,146.63x = 398,250,905,802,581.50
5. Step 5: Solve for x
   x = 398,250,905,802,581.50/22,572,146.63
6. Step 6: Final answer
   x = 17,643,466.19