Finding the Fourth Proportional to 405,300.73, 607,858.63 and 152,607.87

Step by Step Solution

1. Step 1: Write the proportion equation
   405,300.73 : 607,858.63 = 152,607.87 : x
2. Step 2: Convert to fraction form
   405,300.73/607,858.63 = 152,607.87/x
3. Step 3: Cross multiply
   405,300.73x = 607,858.63 × 152,607.87
4. Step 4: Simplify right side
   405,300.73x = 92,764,010,785.42
5. Step 5: Solve for x
   x = 92,764,010,785.42/405,300.73
6. Step 6: Final answer
   x = 228,876.99