Finding the Fourth Proportional to 72,362,128.10, 108,510,014.55 and 31,951,811.30

Step by Step Solution

1. Step 1: Write the proportion equation
   72,362,128.10 : 108,510,014.55 = 31,951,811.30 : x
2. Step 2: Convert to fraction form
   72,362,128.10/108,510,014.55 = 31,951,811.30/x
3. Step 3: Cross multiply
   72,362,128.10x = 108,510,014.55 × 31,951,811.30
4. Step 4: Simplify right side
   72,362,128.10x = 3,467,091,509,061,854.50
5. Step 5: Solve for x
   x = 3,467,091,509,061,854.50/72,362,128.10
6. Step 6: Final answer
   x = 47,913,067.24