Finding the Fourth Proportional to 112,484.09, 155,228.20 and 64,737.43

Step by Step Solution

1. Step 1: Write the proportion equation
   112,484.09 : 155,228.20 = 64,737.43 : x
2. Step 2: Convert to fraction form
   112,484.09/155,228.20 = 64,737.43/x
3. Step 3: Cross multiply
   112,484.09x = 155,228.20 × 64,737.43
4. Step 4: Simplify right side
   112,484.09x = 10,049,074,181.61
5. Step 5: Solve for x
   x = 10,049,074,181.61/112,484.09
6. Step 6: Final answer
   x = 89,337.74