Finding the Fourth Proportional to 142,543,870.96, 196,710,540.24 and 77,353,774.96

Step by Step Solution

1. Step 1: Write the proportion equation
   142,543,870.96 : 196,710,540.24 = 77,353,774.96 : x
2. Step 2: Convert to fraction form
   142,543,870.96/196,710,540.24 = 77,353,774.96/x
3. Step 3: Cross multiply
   142,543,870.96x = 196,710,540.24 × 77,353,774.96
4. Step 4: Simplify right side
   142,543,870.96x = 15,216,302,861,984,984
5. Step 5: Solve for x
   x = 15,216,302,861,984,984/142,543,870.96
6. Step 6: Final answer
   x = 106,748,208.53