Finding the Fourth Proportional to 272,419.12, 375,942.72 and 151,561.81

Step by Step Solution

1. Step 1: Write the proportion equation
   272,419.12 : 375,942.72 = 151,561.81 : x
2. Step 2: Convert to fraction form
   272,419.12/375,942.72 = 151,561.81/x
3. Step 3: Cross multiply
   272,419.12x = 375,942.72 × 151,561.81
4. Step 4: Simplify right side
   272,419.12x = 56,978,559,099.52
5. Step 5: Solve for x
   x = 56,978,559,099.52/272,419.12
6. Step 6: Final answer
   x = 209,157.71