Finding the Fourth Proportional to 22,931,085.15, 31,643,948.72 and 12,477,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,931,085.15 : 31,643,948.72 = 12,477,144.50 : x
2. Step 2: Convert to fraction form
   22,931,085.15/31,643,948.72 = 12,477,144.50/x
3. Step 3: Cross multiply
   22,931,085.15x = 31,643,948.72 × 12,477,144.50
4. Step 4: Simplify right side
   22,931,085.15x = 394,826,120,509,424.56
5. Step 5: Solve for x
   x = 394,826,120,509,424.56/22,931,085.15
6. Step 6: Final answer
   x = 17,217,943.15