Finding the Fourth Proportional to 72,355.77, 99,807.39 and 47,826.72

Step by Step Solution

1. Step 1: Write the proportion equation
   72,355.77 : 99,807.39 = 47,826.72 : x
2. Step 2: Convert to fraction form
   72,355.77/99,807.39 = 47,826.72/x
3. Step 3: Cross multiply
   72,355.77x = 99,807.39 × 47,826.72
4. Step 4: Simplify right side
   72,355.77x = 4,773,460,095.46
5. Step 5: Solve for x
   x = 4,773,460,095.46/72,355.77
6. Step 6: Final answer
   x = 65,972.07