Finding the Fourth Proportional to 493,900.86, 740,978.79 and 152,336.60

Step by Step Solution

1. Step 1: Write the proportion equation
   493,900.86 : 740,978.79 = 152,336.60 : x
2. Step 2: Convert to fraction form
   493,900.86/740,978.79 = 152,336.60/x
3. Step 3: Cross multiply
   493,900.86x = 740,978.79 × 152,336.60
4. Step 4: Simplify right side
   493,900.86x = 112,878,193,068.13
5. Step 5: Solve for x
   x = 112,878,193,068.13/493,900.86
6. Step 6: Final answer
   x = 228,544.23