Finding the Fourth Proportional to 109,388.68, 164,108.84 and 42,810.93

Step by Step Solution

1. Step 1: Write the proportion equation
   109,388.68 : 164,108.84 = 42,810.93 : x
2. Step 2: Convert to fraction form
   109,388.68/164,108.84 = 42,810.93/x
3. Step 3: Cross multiply
   109,388.68x = 164,108.84 × 42,810.93
4. Step 4: Simplify right side
   109,388.68x = 7,025,651,847.57
5. Step 5: Solve for x
   x = 7,025,651,847.57/109,388.68
6. Step 6: Final answer
   x = 64,226.50