Finding the Fourth Proportional to 64,810, 89,437.80 and 35,002

Step by Step Solution

1. Step 1: Write the proportion equation
   64,810 : 89,437.80 = 35,002 : x
2. Step 2: Convert to fraction form
   64,810/89,437.80 = 35,002/x
3. Step 3: Cross multiply
   64,810x = 89,437.80 × 35,002
4. Step 4: Simplify right side
   64,810x = 3,130,501,875.60
5. Step 5: Solve for x
   x = 3,130,501,875.60/64,810
6. Step 6: Final answer
   x = 48,302.76