Finding the Fourth Proportional to 148,196.55, 221,817.51 and 97,637.31

Step by Step Solution

1. Step 1: Write the proportion equation
   148,196.55 : 221,817.51 = 97,637.31 : x
2. Step 2: Convert to fraction form
   148,196.55/221,817.51 = 97,637.31/x
3. Step 3: Cross multiply
   148,196.55x = 221,817.51 × 97,637.31
4. Step 4: Simplify right side
   148,196.55x = 21,657,664,987.30
5. Step 5: Solve for x
   x = 21,657,664,987.30/148,196.55
6. Step 6: Final answer
   x = 146,141.49