Finding the Fourth Proportional to 53,191.06, 72,871.45 and 51,196.84

Step by Step Solution

1. Step 1: Write the proportion equation
   53,191.06 : 72,871.45 = 51,196.84 : x
2. Step 2: Convert to fraction form
   53,191.06/72,871.45 = 51,196.84/x
3. Step 3: Cross multiply
   53,191.06x = 72,871.45 × 51,196.84
4. Step 4: Simplify right side
   53,191.06x = 3,730,788,094.21
5. Step 5: Solve for x
   x = 3,730,788,094.21/53,191.06
6. Step 6: Final answer
   x = 70,139.38