Finding the Fourth Proportional to 42,854,462.16, 64,298,724.71 and 13,712,790.03

Step by Step Solution

1. Step 1: Write the proportion equation
   42,854,462.16 : 64,298,724.71 = 13,712,790.03 : x
2. Step 2: Convert to fraction form
   42,854,462.16/64,298,724.71 = 13,712,790.03/x
3. Step 3: Cross multiply
   42,854,462.16x = 64,298,724.71 × 13,712,790.03
4. Step 4: Simplify right side
   42,854,462.16x = 881,714,911,076,438.62
5. Step 5: Solve for x
   x = 881,714,911,076,438.62/42,854,462.16
6. Step 6: Final answer
   x = 20,574,634.86