Finding the Fourth Proportional to 65,280, 90,094.08 and 38,784

Step by Step Solution

1. Step 1: Write the proportion equation
   65,280 : 90,094.08 = 38,784 : x
2. Step 2: Convert to fraction form
   65,280/90,094.08 = 38,784/x
3. Step 3: Cross multiply
   65,280x = 90,094.08 × 38,784
4. Step 4: Simplify right side
   65,280x = 3,494,208,798.72
5. Step 5: Solve for x
   x = 3,494,208,798.72/65,280
6. Step 6: Final answer
   x = 53,526.48