Finding the Fourth Proportional to 152.35, 228.56 and 61.05

Step by Step Solution

1. Step 1: Write the proportion equation
   152.35 : 228.56 = 61.05 : x
2. Step 2: Convert to fraction form
   152.35/228.56 = 61.05/x
3. Step 3: Cross multiply
   152.35x = 228.56 × 61.05
4. Step 4: Simplify right side
   152.35x = 13,953.59
5. Step 5: Solve for x
   x = 13,953.59/152.35
6. Step 6: Final answer
   x = 91.59