Finding the Fourth Proportional to 152,978.40, 229,378.50 and 59,374.80

Step by Step Solution

1. Step 1: Write the proportion equation
   152,978.40 : 229,378.50 = 59,374.80 : x
2. Step 2: Convert to fraction form
   152,978.40/229,378.50 = 59,374.80/x
3. Step 3: Cross multiply
   152,978.40x = 229,378.50 × 59,374.80
4. Step 4: Simplify right side
   152,978.40x = 13,619,302,561.80
5. Step 5: Solve for x
   x = 13,619,302,561.80/152,978.40
6. Step 6: Final answer
   x = 89,027.62