Finding the Fourth Proportional to 42,053,124.24, 63,090,340.56 and 12,908,440.84

Step by Step Solution

1. Step 1: Write the proportion equation
   42,053,124.24 : 63,090,340.56 = 12,908,440.84 : x
2. Step 2: Convert to fraction form
   42,053,124.24/63,090,340.56 = 12,908,440.84/x
3. Step 3: Cross multiply
   42,053,124.24x = 63,090,340.56 × 12,908,440.84
4. Step 4: Simplify right side
   42,053,124.24x = 814,397,928,694,212.50
5. Step 5: Solve for x
   x = 814,397,928,694,212.50/42,053,124.24
6. Step 6: Final answer
   x = 19,365,931.63